Question

A wall of length 10 m was to be built across an open ground. The height of the wall is 9 m and thickness of wall is 36 cm. If the wall is to be built up with bricks whise dimensions are 36 cm x 25 cm x 9 cm, hiw many bricks would be required to build three forth of this wall.

Answer 1

volume of wall=10×9×0.36
=90×0.36 m^3
=32.4m^3
volume of a brick=36×25×9 = 8100cm^3
=0.0081
no of bricks required=32.4/0.0081=4000 HOPE IT HELPS..............